Evaporator



(No Model.)

W. 85 W. A. WILOOX.

EVAPORATOR.

No. 408,365. Patented Aug. 6, 1889.

UNITED STATES PATENT OFFICE.

WVILLIAM VILCOX AND WILLIAM ALARIC YVILCOX, OF GARRETTSVILLE, OHIO.

EVAPO RATO R.

SPECIFICATION forming part of Letters Patent N 0. 408,365, dated August 6, 1889. Application filed January 28, 1887. Serial No. 225,815. (No model.) I

To aZZ whom it may concern:

Be it known that we, WILLIAM lVILCOX and WILLIAM ALARIC \VILCOX, citizens of the United States, residing at Garrettsvillc, in the county of Portage and State of Ohio, have invented a new and useful Improvement in Evaporator-Arches, of which thefollowing is a specification.

Ourinvention relates to arches for evaporators, and will be hereinafter described, and

a particularly pointed out in the claims.

In the accompanying drawings, which form part of this specification, Figure 1 represents a vertical longitudinal section; Fig. 2, a plan View; Fig. 3,avertical transverse section; Fig. 4, a perspective showing the inside of the front casting, and Fig. 5 a similar view of the rear casting.

Reference being had to the drawings and the letters thereon, A indicates the arch, which is composed of a front casting B, a rear casting 0, and a body portion D, of sheet metal. The front casting is provided with an opening a, through which fuel is introduced to the furnace E, and an opening I), for removing ashes from the pit F, and both of said openings are provided with suitable doors. From the inner surface of the front project flanges c, d, and e, to which the sheet-metal body D is bolted or riveted, and a flange f, which forms a support for one end of an evaporating-pan. (Not shown.) The front is also provided with two transverse bearing-bars g 71 for the front end of the grate-bars.

The rear casting C is provided with an opening 1', having a door 70 to control it, and iiiwardly-projecting flanges l m n, which correspond with the flanges c d c on the front B, and to which the sides and bottom of the sheetmetal body are secured.

The sides of the arch are inclined, as shown in Fig. 3, for the purpose of deflecting the heat against the pan, and the bottom is inclined upward and contracted vertically from the furnace to the rear end of the combustionchamber for the difference in the temperature of the products of combustion as they recede from the furnace, and thereby maintain the same degree of heat as nearly as possible. The sides and the bottom of the arch are lined with a refractory materialsuch as fire brick or clay-as shown at o in Fig.

One of the sides of the arch is provided with a horizontal flange 19, and the other with a similar flange q, for supporting the pan, and a transverse bar 1* near the rear end of the arch forms a support for the rear end of the pan and the front end of the heater, (not shown,) while it braces and stiffens the arch. The rear end of the heater is supported upon the transverse plate s,upon which the smoke-stack (not shown) is supported around the vertical flange 2. The pan is guided to and held in position on the arch by the projection u on the front B and the vertical flange 'v on one side of the arch. The rear ends of the gratebars G are supported upon a casting H, provided with a rearwardly-extending flange a, which crosses the furnace transversely and forms a bridge-wall, and the two surfaces 1) 0' form rear bearing-bars for the grate-bars. By providing the double bearing-bars g h on the front B and Z) c 011 the casting H the gratebars may be adjusted to bring the fire nearer to or farther from the boiling-compartment of the evaporating-pan.

The rear end of the arch is supported upon legs cl e, which are secured in angular brackets f by means of screws 9', and may be readily removed to facilitate transportation.

The door 70 in the rear end casting C is used for regulating the heat under the evaporatingpan in finishing the juice under treatment.

By the con struction shown a very light, cheap, and durable arch is produced.

Having thus fully described ourinvention, what we claim is 1. An arch for evaporators, consisting of a front casting B, having flanges c, d, and e, and a rear casting C, provided with flanges Z, m, and n, in combination with a sheet-metal body D, secured to the flanges of both castings, provided with inclined walls and a fiat bottom contracted vertically, and a lining of refractory material, substantially as described.

2. An arch for evaporators, consisting of a front casting B, having flanges c, d, and e, openings a and h, and a rear casting O, having flanges Z, m, and a and transverse opening 1' and doork, in combination with a sheetmetal body D, secured to the flanges of both castings and provided with inclined Walls and a flat bottom contracted vertically, and a lining of refractory material, substantially as described.

3. An arch'for an evaporator, consisting of a front casting B, having flanges 0,61, and e and vertical projection 10, and a rear casting 0, provided With flanges Z, m, and n, in combination with a sheet-metal body D, secured to the flanges of both castings, provided with inclined sides terminating in horizontal flanges p q and vertical flange v, and a transverse bar arranged to support one end of an evaporating-pan, substantially as described.

4. An arch for evaporators, consisting of a front casting B, having flanges c, d, and e, and a rear casting 0, provided with flanges Z, m, and n, in combination With a sheet-metal body D, secured to the flanges of both castings, provided with inclined sides having flanges p and q, transverse supporting-bar r, and plate 3, constructed to support one end of a heater, and a smoke-stack, substantially as described.

5. An arch for evaporators, consisting of a front and rear casting having flanges 0,61, e, Z, m, and n, a furnace, and a combustion-chamber contracted vertically from the furnace to the rear end thereof and having inclined sides, in combination With a smoke-opening on top of the arch and a door in the rear casting, substantially as described.

6. An arch for evaporators, consisting of a front casting B, having flanges c, d, and e,

transverse bearing-bars g h, and openings at and b, a furnace provided With casting l-I, having flange a, and bearing-bars b c, in combination with longitudinal grate-bars adjustable upon said bearing-bars, substantially as described.

In testimony that We claim the foregoing as our own we have hereto affixed our'signatures in presence of tWo Witnesses.

WILLIAM WILCOX. WM. ALARIO NVILCOX.

Witnesses:

JOHN H. MITCHELL, O. M. GRAHAM. 

